[1]林达,DAO Ngoc Chuong,洪森先,等.间伐对杨树人工林土壤微生物量和氮含量的影响[J].森林与环境学报,2016,36(04):416-422.[doi:10.13324/j.cnki.jfcf.2016.04.006]
 LIN Da,DAO Ngoc Chuong,HONG Senxian,et al.Effects of thinning intensity and method on soil microbial biomass and nitrogen content in the poplar plantations[J].,2016,36(04):416-422.[doi:10.13324/j.cnki.jfcf.2016.04.006]
点击复制

间伐对杨树人工林土壤微生物量和氮含量的影响()
分享到:

《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
36
期数:
2016年04期
页码:
416-422
栏目:
出版日期:
2016-10-13

文章信息/Info

Title:
Effects of thinning intensity and method on soil microbial biomass and nitrogen content in the poplar plantations
作者:
林达12 DAO Ngoc Chuong12 洪森先12 田野12 方升佐12
1. 南京林业大学林学院, 江苏 南京 210037;
2. 南京林业大学南方现代林业协同创新中心, 江苏 南京 210037
Author(s):
LIN Da12 DAO Ngoc Chuong12 HONG Senxian12 TIAN Ye12 FANG Shengzuo12
1. College of Forestry, Nanjing Forestry University, Nanjing, Jiangsu 210037, China;
2. Collaborative Innovation Center of Modern Forestry in Southern China, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
关键词:
杨树间伐处理无机氮水溶性有机氮微生物量氮微生物量碳
Keywords:
poplarthinning treatmentinorganic nitrogendissolved organic nitrogenmicrobial biomass nitrogenmicrobial biomass carbon
分类号:
S714.2
DOI:
10.13324/j.cnki.jfcf.2016.04.006
摘要:
针对生产中杨树大径材培育存在的问题,设计了4种间伐处理(对照、30%下层伐、50%下层伐和50%机械伐),研究了不同间伐处理对杨树人工林土壤微生物量碳、微生物量氮、土壤无机氮和土壤溶解性有机氮含量的影响及其时间和空间格局。结果表明,由于间伐处理改变了林地土壤的温度和水分条件,导致在生长季高强度间伐处理(50%下层伐和50%机械伐)显著提高了土壤微生物量碳和微生物量氮含量,表现为50%机械伐 > 50%下层伐 > 30%下层伐 > 不间伐,而在非生长季则表现相反的趋势。高强度间伐显著提高了土壤无机氮含量,但50%下层伐和50%机械伐的土壤无机氮含量差异不显著;土壤无机氮(NH4+-N和NO3--N)主要以硝态氮的形式存在,并表现出明显的季节动态。高强度间伐提高了土壤溶解性有机氮含量,特别在夏季和秋季这种差异达到显著水平。从不同土壤层次看,土壤微生物量、土壤无机氮和溶解性有机氮均表现出明显的表聚性。研究结果可为杨树人工林的可持续经营提供理论依据和技术支撑。
Abstract:
Based on the existed problems for large diameter timber cultivation of poplar plantations, four thinning treatments (CK, 30% lower thinning, 50% lower thinning and 50% mechanical thinning) were designed, and the dynamics in the contents of inorganic nitrogen, dissolved organic nitrogen (DON), microbial biomass nitrogen (MBN) and carbon (MBC) under different thinning treatments were monthly investigated at two soil depths. The results indicated that thinning treatments modified the soil temperature and moisture, and consequently intensive thinning treatments (50% lower thinning and 50% mechanical thinning) significantly improved soil MBC and MBN contents, with the order of 50% mechanical thinning > 50% lower thinning > 30% lower thinning > CK during the growing season, while showing the opposite trend during the non-growing season. Intensive thinning treatments also significantly increased inorganic nitrogen content of the soil, but no significant difference was observed between 50% lower thinning and 50% mechanical thinning. Soil inorganic nitrogen was mainly in the form of nitrate nitrogen, and showed an obvious seasonal variation. Intensive thinning treatments enhanced DON content, but a significance was only detected in summer and fall. From the view of soil depths, the contents of soil microbial biomass, inorganic nitrogen and dissolved organic nitrogen were higher at 0-10 cm than at 10-20 cm soil, showing a clear surface aggregation characteristics. Results from this study would provide some theoretical and technical supports for the sustainable management of the poplar plantations.

参考文献/References:

[1] 方升佐.中国杨树人工林培育技术研究进展[J].应用生态学报,2008,19(10):2308-2316.
[2] 江波,袁位高,戚连忠,等.江河滩地优质大径杨木培育关键技术研究[J].林业科学,2002,38(1):68-75.
[3] VESTGARDEN L S,KJ?NASS O J.Potential nitrogen transformations in mineral soils of two coniferous forests exposed to different N inputs[J].Forest Ecology and Management,2003,174(1/2/3):191-202.
[4] NEFF J C,III F S C,VITOUSEK P M.Breaks in the cycle:dissolved organic nitrogen in terrestrial ecosystems[J].Frontiers in Ecology and the Environment,2003,1(4):205-211.
[5] PURI G,ASHMAN M R.Relationship between soil microbial biomass and gross N mineralisation[J].Soil Biology and Biochemistry,1998,30(2):251-256.
[6] CHUONG D N,崔光彩,洪森先,等.间伐对杨树人工林凋落物及养分归还量的影响[J].林业科技开发,2015,29(3):48-51.
[7] 任文.疏伐强度对马尾松人工林土壤氮素转化及其养分循环的影响[D].南昌:南昌大学,2012.
[8] 囤兴建,曲宏辉,田野,等.间伐对长江滩地杨树人工林土壤有效氮素的影响[J].南京林业大学学报(自然科学版),2013,37(4):45-50.
[9] 吴金水,林启美,黄巧云,等.土壤微生物生物量测定方法及其应用[M].北京:气象出版社,2006.
[10] LIU D,FANG S Z,TIAN Y,et al.Variation in rhizosphere soil microbial index of tree species on seasonal flooding land:an in siturhizobox approach[J].Applied Soil Ecology,2012,59:1-11.
[11] HAGEDORN F,SCHLEPPI P.Determination of total dissolved nitrogen by persulfate oxidation[J].Journal of Plant Nutrition and Soil Science,2000,163(1):81-82.
[12] NICOLARDOT B,FAUVET G,CHENEBY D.Carbon and nitrogen cycling through soil microbial biomass at various temperatures[J].Soil Biology and Biochemistry,1994,26(2):253-261.
[13] 陈伏生,曾德慧,何兴元.森林土壤氮素的转化与循环[J].生态学杂志,2004,23(5):126-133.
[14] 崔光彩.间伐对杨树生长、林下植物多样性和土壤酶活性的影响[D].南京:南京林业大学,2014.
[15] 李瑞霞,马洪靖,闵建刚,等.间伐对马尾松人工林林下植物多样性的短期和长期影响[J].生态环境学报,2012,21(5):807-812.
[16] 燕亚飞,方升佐,田野,等.林下植物多样性及养分积累量对杨树林分结构的响应[J].生态学杂志,2014,33(5):1170-1177.
[17] 孙志高,刘景双,陈小兵.三江平原典型小叶章湿地土壤中硝态氮和铵态氮的空间分布格局[J].水土保持通报,2009,29(3):66-72.
[18] 燕亚飞,田野,方升佐,等.不同密度杨树人工林的外源无机氮输入及土壤无机氮库研究[J].南京林业大学学报(自然科学版),2015,39(4):69-74.
[19] 方升佐,田野.人工林生态系统生物多样性与生产力的关系[J].南京林业大学学报(自然科学版),2012,36(4):1-6.
[20] 张鼎华,叶章发,范必有,等.抚育间伐对人工林土壤肥力的影响[J].应用生态学报,2001,12(5):672-676.
[21] 于海群,刘勇,李国雷,等.油松幼龄人工林土壤质量对间伐强度的响应[J].水土保持通报,2008,28(3):65-70.
[22] ADAMS M A,ATTIWILL P M.Nutrient balance in forests of northern Tasmania: 2.Alteration of nutrient availability and soil-water chemistry as a result of logging,slash-burning and fertilizer application[J].Forest Ecology and Management,1991,44(2/3/4):115-131.
[23] KUTIEL P,NAVEH Z.The effect of fire on nutrients in a pine forest soil[J].Plant and Soil,1987,104(2):269-274.
[24] 丁九敏,徐涵湄,刘胜,等.雪灾对武夷山常绿阔叶林土壤有效氮的影响[J].南京林业大学学报(自然科学版),2010,34(3):136-140.

相似文献/References:

[1]张思禄.橙斑白条天牛幼虫空间分布的地理统计学分析[J].森林与环境学报,2012,32(01):18.
 [J].,2012,32(04):18.
[2]赵桂华,孟庆庭,席刚俊.杨树红心病的研究[J].森林与环境学报,2010,30(03):207.
[3]刘诺,张新珏,张爱琳,等.两种杨树对铅和铅-镉复合胁迫的生理响应[J].森林与环境学报,2020,40(03):276.[doi:10.13324/j.cnki.jfcf.2020.03.007]
 LIU Nuo,ZHANG Xinjue,ZHANG Ailin,et al.Physiological response of two poplar species to Pb and Pb-Cd combined stress[J].,2020,40(04):276.[doi:10.13324/j.cnki.jfcf.2020.03.007]

备注/Memo

备注/Memo:
收稿日期:2015-12-08;改回日期:2016-03-06。
基金项目:国家科技支撑计划“阔叶树速生丰产林定向培育技术研究”(2015BAD09B02);国家重点基础研究发展计划(2012CB419600)。
作者简介:林达(1989-),男,硕士研究生,从事森林培育学研究。
通讯作者:方升佐(1963-),男,教授,从事人工林定向培育技术研究。E-mail:fangsz@njfu.edu.cn。
更新日期/Last Update: 1900-01-01